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M. c. @mw/Lm TYPEWRLTING MACHINE Original Filed Aug. 29 1917 A Sheats-$m 3 NWN M. C. CRAWLEIY TYPEWRITING MACHINE original mma Aug. 29 1917 4 sheetssheet 4 KMX MANSFIELD o. CRAWLEY, 'orofnorom'nnw Yonai, Assrenon To ADDoGnArH con PY, on'- Losam, oeLironNIa, .a CORPORATION or CALIFORNIA.

".TYPEWRITING MACHINE.

A.lipplication le .dugast 29, 1917, Serial No. 188,772. Renewed Gctcber 2:1922. SeraI No. 591,989.

To allie/1,0m t may concer/n:

Be it known that I, MANsFinLD C. CRAW- Lnr, a citizen of the United States, and resident of Groton, county of Tompkins, and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

This invention relates to carriagel and platen operating mechanism for writing mavchines, and has for its objects to provide a simple and efficient power-driven keyboatrolled means for imparting continuous running movements to a platen carriage either in normal letter-feed direction to rapidly ad- Vance the carriage or in the opposite direction to rapidly return the carriage, and to provide a simple and efficient 'power-operated line spacing mechanism so associated with said carriage running-.mechanism that the platenmay be operated for line-spacing either automatically when the running mechanislnis put into action to return the eary riage or independentlyof the carriage running means. i

1n the drav\'ings,v Fig. 1 is a vertical transverse sectional view of a typewriting machine, ta'lten on a line in the rear ofthe type segment, a portion of the carriage being shown in position in the frame.

Fig. l a view showing a part of the mechanisni illustrated inF 1,'with the parts in position to, shift the carriage to the rightliand side of the machine;

Fig. 3 a horizontal sectional view of a part of the carriage. showing the line spaeing mechanism;

Fig. 4 a horizontal sectional view of the carriage frame, substantially on the line' .lV-IV of Fig. l;

.Fig 5 a horizontal sectional view taken on the line V- T.of Fig. 2;

Fig. (l a. horizontal sectional View on the line VI-Vof Fig. l;

Fig. 7 the connection between the line-spacing mechanism and the carriage shift n1echanism;

Fig. S a detail View of the connected ends of the levers and links which operate the carriage shifting means;

Fig. 9 a vertical sectional view on the line X-X of Fig. 8; and

Fig. 10 a horizontal sectional view on the line XMK of Fig- 8.

a vertical sectional view showing Referring to the various parte by numerals, 1 designates the drive shaft which is continuously operated by means of a suit-v corresponding surfaces formed on the inner faces ofthe beveled gears 5 and 6. Eirgaging the gears 5 and 6 is a beveled pinion 10 rigidly secured to the lower end of a vertical carriage driving shaft 11. On the upper end of said shaftv is secured a car-4' riage driving pinion 12 which is arranged to engage the carriage rack 13. lt is manifest that by rotating the drive shaft 11 in the desired direction the carriage may be moved, from side to side in the machine frame.

Suit-ably mounted in the machine frame are two key levers 14 and 14, one of said levers being arranged near each side Vof the machine. The rear end of lever 11i engages the substantially horizontal arm of. a belloranlt lever 15. pivoted in the main frame with its other arm extending upwardly from the pivot. Connected to this upwardly eX- tending arm of the bell-crank lever is an .inwardly extending substantially horizontal link 16, whose inner end is provided with the upwardly and outwardly inclined Slot. 17. l-ivoted in the main frame directly below the carriage drive shaft 11 is a bellcrank niain lever 18, one arm of which, 18, extends downwardly, the other arm 18b extending horizontally substantially on a line with the pivot of rthe lever. The depending arm 1i a is provided with a forwardly extending horizontal pin 19 and said pin eX tends tlnfough the slot 17 in the link 16. The said arin 18 of the bell-crank lever below the pin 19 is provided with a. stop pin 20, which is adapted to be engaged by a hooklilre shoulder 21, formed on the lower edge of the. lin'ir 16, when said link is moved laterally through the bellcrank lever 15 and the. ley lever 14W.V ln the main frame directly below the clutch head 7 is pivoteda gear change lever 22 the upper end of which carries a roller 23 which engages the inner surfaces of the clutch members 8 and 9,' as shown clearly in Figs. 1 and 2.- The lower end of this gear changing lever is forked, and the arm 18a of thebell-crank lever 18 is provided with a forwardly extending pin 24, which fits between the arms of said fork, so that the said gear changing lever is swung on its pivot when the bell-crank lever 18 is moved. The key'lever 14 engages the horizontal arm of a bell-crank lever 25, said lever being provided with an upwardly extending arm which is connected to an inwardly extending link 26. The link 26 is provided with a slot 27 which corresponds with slot 17 in the link 16; and the lpin 19 extends through the slot 27 so that said pin projects through the slots of both links. The link 26 is provided at its lower edge with a downwardly extending shoulder 28 which corresponds with the shoulder 21 of link 16, and which is adapted to engage the stop pin 2O when the lever 14 is operated.

It is manifest that by operating the key lever 141 the link 16 will be moved inwardly and the slot 17 will guide the inner end of said link downwardly to cause the shoulder 21 to engage the stop pin 20. Further in` ward movement of the link 16 will then swing the ,bell-crank lever 18 on its pivot, causingr the pin 24 to move the gear changing lever 22 and thrust the clutch member 9 into engagement with the clutch surface formed on the inner face of the gear 5, as clearly shown in Fig. 2 of the drawings. It is also manifest that by operating the keyv lever 14,4 the bell-crank lever 1'8 will be moved in the opposite direction through link 26, thereby bringing the clutch member 8 into engagement. with the clutch surface formed on the inner face of the gear 6. As shown in Fig. 2, the shoulder on one link forms a stop to limit the movement of the bell-crank lever 18 and the other link.

On the carriage drive shaft 11 is mounted a star detent wheel 2f), said wheel being rigidly secured to the. f beveled gear 10. Mounted on a suitable pivot is a detent bell- ,crank lever 30, one arm of which carries a roller 31 which is adapted to engage the,

teeth of the detent wheel. The other arm of said level' is in position to be engaged by the upper end of a releaselever pvoted in the main frame, the lower end of said level` heilig formed with the two cam surfaces 33 and34 adapted to be engaged by a. roller 35 mounted on the end of the arm 18h of the bell-crank lever 18. AIt is manifest that when the hell-crank lever 18 is swung on its pivot the release lever will be moved to swing the detent lever 3() and thereby release the roller 31 from the teeth ofthe detent wheel. rThe bell-crank leveiizxmoving iir one` direction will cause the roller""35 to enlgage the cam surface 33; moving in the opposite direction will cause the roller 35 to engage the cam surface 34, so that the release lever 30,3vill be swung on its pivot by the operation `f either one of the key levers 14 or 14". By releasing the roller 31 from the detent wheel the carriage drive shaft 11 will be free to rotate in either direction.

Rigidlysecured to the drive shaft 1 is a worm 36. Abovesaid wrm and adapted to be drawn downwardly into engagement therewith is a line-space dog 37. The body portionof said dog is formed with a slot 38, through which extends a guide screw 39, said screw slidingly supporting the said dog. The dog 37 is formed with a forwardly extending lug 4'() which is adapted'to be engaged by a hook 41 formed on the upper end of a dog-operating link 42. The lower end of the-link 42 is pivotally connected to aline-space lever 43 which is pivoted at 44 and is formed with the inclined 'cam surface 45 at its free inner end. The cam surface 45 is in position to be engaged by the pin 24 of the bell-crank lever 18 when the arm 18a of said lever is moved toward the left by means of the link 16. A downward movement of the line-space lever 43 moves the line-space dog into engagement with the worm 36 and through the movement of said dog the line-space devices are operated. The line-space dog 37 is formed with a rearwardly extending lug 46 which A is adapted to be passed downwardly through a slot 47 formed. in the forward edge of a guide plate 48, which is directly over the worin; -The guide plate 48 is formed with a forwardly extending stop 49 which is adapted to be engaged by the line-space dog 37 when the said dog is in its normal atrest position, as shown in Fig. 1. A spring 5() yieldingly holds the line-space dog against the stop 49, as shown clearly in Fig. 1. When the line-space dog is moved down wardly into engagement with the worm 36, the lug 46 passes below the guide plate 48 and the rotation of the worm then carries the dog toward the center of the machine, the lug 46 passing under the guide plate until the dog is freed from thc worm. whereupon the spring 50 will lift said dog and cause the lu g 46 to be. elevated above the guide 48, whereupon it will be returned to its normal position over the top of said plate. In lits return movement the `lug 46 will con, tact with the stop4f) and the line-space dog willtheu be in position for the next linespacing operation. The upper edge of the body ol' the linespace dog is provided with geared teeth to form a suitable rack, and said rack is in engagement with a pinion 51 niountedon a bearing screw 52. Rigidly connected to said pinion by means of a hub 53 is apinion 54, which in turn meshes with a rack 55 formed on a slotted bar 56, which llO `line-space rail 59,.

is arranged vertically in the machine, as shown clearly in Figs. 1 and 2. This bar 56 is guided and supported in engagement with its pinion by means of a screw 56a which passes through the said slot and into a :permanent part of the machine frame.- ln the upper rear part of the machine frame is mounted a rock shaft 57 which is provided with a series of forwardly extending arms 58 which carry at their forward ends the line-space rail 59. The upper end of the slotted rack bar 56 ispivotally connected to one of said arms 58, so that upon the downward movement of said rack bar under the influence of its pinion 54, the line-space rail will be moved downwardly. The means for rotating the platen for line-spacing is connected to the line-space rail.

The platen carriage 60 supports the usual platen 61, said platen being mounted. in any suitable form of bearings and in any suitable manuel'. .The platen carriage may be of any suitable form, and may. be arranged to travel transversely of the machine on any suitable form of carriage track. ln the carriage and Supported by 4suitable bearing brackets 62 a transverse substantially horizontal rock shaft 63. Secured rigidly to said shaft and extending rearwardl therethrough is a crank arm 64, to which is connected a de-` pending link which carries at ,its lower end a grooved roller 66 which engages the lower edge of the line-space rail and travels along' said rail as the carriage is moved transversely of the machine. Surrounding the rock's'haft 63 is a coil spring 67. one end of said spring tending to lift the crank arm 64, the other end being connected to :the rigid bearing brackets 62 so that the said spring normally tends to vlift the crank arm 64e and through it the`link 65 and the rock shaft 63 near one end thereof is an upwardly extending crank arm 68to the upper end of which is -pivoteda forwardly extending pawl 69 which is adapted toen gage the ratchet 70 mounted on the shaft of the platen. It is manifest that as the shaft G3 is rocked the pawl 69 will engage the ratchet 70 and rotate the platen for line pacing io varythe extent of rotation of the platen through the operation of the pawl fl anI adjustable swinging guard plate 7l provided, said plate being journalled on ine platen shaft'.` It is manifest that by swinging the guard plate Tl under the pawl 69, the point at which the said pawl 69 will engage the ratchet 70 may be varied, thereby varying the number of spaces the platen will be rotated through the line-spacino means.

tillounted in the machine at the rear thereof and in proper position to be engaged by suitable stops on the` carriage are carriage stops To lift said stops in theposition Secured rigidly to the Y tobe engaged by the stop on the carriage,

"keys T3 are provided. Any desired number 74, the line-spacing dog 37 will be depressed through the lever 43 and bar 4:2, and the platen rotated `for line-spacing without operatingl the carriage shifting gears and with out moving the carriage transversely of the machine.

From the foregoing it is manifest that the carriage may be moved in either di; rection to the desired predetermined stop, and that when moving the carriage toward the right-hand side of the machine, the platen will be rotated for line-spacing; but when moving toward the left-hand side of the machine the platen rotating means will be inactive and will not operate. It is also nnmifest that by operating the line-space key the line-spaee mechanism will be operated without shifting the carriage. y

The line-spacing mechanism per se herein shown and described has certain features in common with the line-spacing mechanisms forming the subject matter of my Patents Nos. 1,4695 714 and 1,469,776 dated October S), 1923, wherein such common subject matter is broadly claimed The present application is also subordinate to my Patent No. 1,459,777 dated October 9, 1923, wherein is shown a carriage and platen control mechanisin, said patent containing broad claims to subject mattei' common to said patent and the present application.

What. I claim is:

L'In a. typewriting machine, a key-controlled power-driven line-spacing mechanism embodying toothed gearing held constantly in mesh, said gea-ring including a rack-bar actuated by the power, a gear driven thereby, another gear driven by the aforesaid gear, and another rack-bar actuated. from this latter gear.

ln a typewriting machine, the combina.- tion of a carriage, a rack, a carriage drive shaft, a pinion thereon meshing with said rack, a continuously operating main shaft, key-controlled means for connecting said main shaft with the carriage drive shaft to move the carriage in either direction, a Worm mounted on the main shaft, linespacing mechanism adapted to be connected to and operated by said worm, and means whereby said line-spacing mechanism will be connected to the worm when the' carriage is moved in one direction.

In a typewrlting machine, a key-con trolled power-draven line-spacing mechanism embodying toothed gearing held constantly in mesh, said gearing including a rack-har and key-actuatedlv means for ten lporarily connecting it .tolthe power to there- 'hy reciprocate it in onelrecti'on, a spring for returning this rack-har, another reciprocating naelebar connected to the platen-rotatinpr means, and intermediate gears connecting the rack-hars.

4. In a typewritingi machine. the combi- !nation ot' a carriage, a carriage drive sha't't. Ameans connecting the said shaft to said car riapre. a continuously operating shaft, aY

' rear changing lever. two keys, links interposed between the keys and the gear changshaft., a

ing lever and adapted to move the said vlever in opposite directions, to connect the continuously operating shaft to the drive shaft.

5. In a typewriting machine. the comhination of a carriage. a carriage drive shaft, means connecting the said drive shaft to said carriage.l a continuously operating! shaft, a pair ot levers, a link connected to if each ot said levers. a hell-crank lever opera-tively engaged hy-said links. and means operated' through said bell-crank lever for connectingr the carriage drive shaft to the continuously operating shaft to move the carriage. i

40 means operated hy said liellcrank lever to connect the continuously operating' shaft to the carriage drive shaft and to the linespacini'g mechanism.

7. ln a. typeivriiinpr machine the combination of a carriage, a carriage drive shaft,

means connectingr the said shalt; to said earriag'e, an operatingl shaft. a. gear-,changing lever, a detent to prevent the tree rotation of the carriage drive shaft. a pair of key levers, a link connected to each ot' said levers, and means operatively connected to the links to operate the gcaischangine lever to connect the carriage drive shaft to the operating shaft and to release thewdetent from the carriage drive shaft.`

8. ,In a typewriting machine the eon'ibination of a carriage, a carriage moving means,

a pair of key levers, a link connected to each ot' said links` to the carriage movingv means.

9. A line-spacing device for a typewritingf machineI comprising a platen. a line f space har. means connected to said liar and movable lonpitudiiiall)Y thereof for rotating the platen tor linespacing. a continuously1 operating shaft. a worm thereon` a don adapted to move longitudinally ofthe shaft, key-operated means for movin;r said dog into engagement with said ivorm. and raf'k and pinion devices connectingr said worin with said line-space bar.

10. A line-spacinpr device tor a typewritingl machine.y comprising :i platen, a line: space har.. means connected to said bar for rotatingr the platen tor line-spacing. a contiiinouslv operating shatt. a dog adapted to he moved longitudinally ofthe shaft, and rack and pinion 4devices connecting' said dog with the line-space har.

l1. A line-spacing device. for a. tvpeivi'in ing machine. comprising a platen. a linespat-e har. means connected to said hai' ior rotating' the platen for line-spacing, a con* tinnously operating shaft. rack and pinion devices connectei'l to said bar. key-actuated means for connectingy said rack and pinion devices to the continuously operating` shaft. and means tor ifnaintaininpr said connection for a predetermined period.

l2. ln a typeivritingl machine. a poiveu driven carriage-running mechanism including a. f 'lutch-shit'tingr lever and a lockvingr device for said mechanism.` a. main lever and two independent key-actuated means for shitting said main lever respectively in opposite directions, and means whereby the inovei'nent ot this main lever is caused to actuate said clutch lever and also said locking device.

13. In a typeivrit'ing machine, a powerydriven mechanism ior giving" the carriage a running` movement embodyingv a clutchsliittinfr lever and a p'eiiilocking device. amain lever and two key mechanisms vtor independently actuating' this main lever in opposite directions. means connecting this main lever with the i' iiteh-shifting,r lever, and another lever toi' unlocking the locking devices actuated hy said main lever.

This specilieation signed this twenty seventh day of August. l), 1917.

MANSFIELD @..CR-AWLEY.

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